Bookmark



FIG. 1 is a front perspective view of the bookmark;

FIG. 2 is a rear perspective view;

FIG. 3 is a front view;

FIG. 4 is a side view;

FIG. 5 is a rear view, and,

FIG. 6 is a front view thereof, shown in use with a book, the broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a bookmark, as shown, and described. 